| ID | Name | Required | List |
|---|---|---|---|
| ORI | Originating Agency Identifier (ORI) | Y | N |
| ATN | Attention of Recipient (ATN) | Y | N |
| DOS | Date of Aircraft Sighting (DOS) | N | N |
| ID | Name | Required | List |
|---|---|---|---|
| NAM | Owner (NAM) | N | N |
| SER | Serial Number (SER) | N | N |
| REG | Registration Number (REG) | N | N |
| SIT | Object or Aircraft Sighted (SIT) | N | Y |